19201 St. John,—Trillium rectistamineum 79 
any subordinate category, and the specifie combination is made 
below. It is probable that the Florida specimens referred to by 
Rendle! are of this species. 
TRILLIUM  rectistamineum (Gates) comb. nov. T. lanceolatum 
Boykin, var. rectistamineum Gates, Ann. Mo. Bot. Gard. iv. 48 
(1917).—Georgia, northwestern Florida, and Alabama.—GEORGIA : 
rich woods northwest of Tennille, Washington County, June 14, 
1902, R. M. Harper, no. 1,330. FLORIDA: moist slopes in woods, 
Chattahoochie, March 14, 1901, A. H. Curtiss; near head of rich 
ravine on Aspalaga Bluff, Gadsden County, March 8, 1909, R. M. 
Harper, no. 25; Aspalaga, March, 1897, Herb. Chapman. ALABAMA: 
Buckley. l 
T. rectistamineum (Gates) St. John has broadly lanceolate petals, 
4-6.5 cm. long, 1.2-1.8 cm. broad, the filaments one-quarter the 
length of the anthers, anthers straight, fruit ovoid, 3-angled, leaves 
broadly deltoid-lanceolate; while T. lanceolatum Boykin acc. to 
Small has lanceolate petals, long-clawed at the base, 2-5 cm. long, 
3-8 mm. wide, the filaments about as long as the anthers, anthers 
incurved, fruit 6-angled (according to Watson),? leaves lanceolate. 
T. rectistamineum has broadly lanceolate dark purple petals, 4-6.5 
cm. long, 1.2-1.8 cm. broad, leaves broadly deltoid-lanceolate, stems 
glabrous; while T. viride Beck has clawed greenish petals, the blade 
linear or nearly so, the claw usually purplish, leaves ovate, and the 
stem scabrous at the summit. T. rectistamineum has filaments one- 
quarter the length of the anthers, the connective projecting con- 
spicuously beyond the tips of the anther sacs, petals broadly lanceo- 
late, 4-6.5 cm. long, 1.2-1.8 cm. broad, leaves broadly deltoid-lanceo- 
late; while T. Underwoodii Small has filaments not more than one- 
fifth the length of the anthers, the connective scarcely exceeding 
the tips of the anther sacs, petals lanceolate or ovate-lanceolate, 
4-7 cm. long, 1-2.1 cm. broad, and the leaves ovate or orbicular- 
ovate. This series of contrasts should be of assistance in distin- 
guishing Trillium rectistamineum (Gates) St. John from related 
species. 
GRAY HERBARIUM. 
1 Rendle, A. B. Journ. of Bot. xxix. fourth paragraph 325 (1901). 
? Watson, S. Rev. N. Am. Liliaceae, Proc. Am. Acad. Arts and Sci. xiv. 273 
(1879). 
